No need of useless placeholder method

Change-Id: I609cae8ddfb687d2f1c51e58efae9af6f33abff4
Fix array to string conversion & call by reference

Change-Id: I0dbf786cc260ae6f5d4b4d515eeb60d9c37ec8e7
Merge commit 'refs/changes/98/2398/1' of ssh://gerrit.tuleap.net:29418/tuleap into tuleap-stable-master

* ssh://gerrit.tuleap.net:29418/tuleap:
  Fix array to string conversion & call by reference
  No need of useless placeholder method

Change-Id: Idad2e656baf952e6da632c771bdc3f95684761d8
Tuleap 7.0.99.19

Change-Id: I2d0e4511ead2f1faf581cb32fa27116df74c4e8f